Up until Musk was 8, he lived with both of his parents Maye and Errol Musk in South Africa, Strauss reported. But he did not see them much and mostly lived under the watch of a housekeeper, who Musk said was mainly there to make sure he didn’t break anything.

“She wasn’t, like, watching me. I was off making explosives and reading books and building rockets and doing things that could have gotten me killed,” Musk told the magazine. “I’m shocked that I have all my fingers.”

Throughout his childhood, books have played a crucial role in fueling Musk’s ambitions. It’s said that he read the entire Encyclopedia Britannica at age nine and would pore through science fiction novels for more than 10 hours a day.